5 Read the text and choose the correct alternative. Secondary students usually (a) have to/mustn't do lots of homework and lots of exams. This can be stressful. That's one of the reasons why some schools in the UK now teach a thing called 'mindfulness'. The idea is that the students (b) should/ought pay attention to what is happening right now. They (c) had better/shouldn't think about the past or the future, just the present. One activity that is part of mindfulness is 'beditation'. This is like meditation but you (d) better/have to do it lying down to get the full benefits. The idea of mindfulness originally came from Buddhist thinking and meditation, but, of course, you (e) don't have to/mustn't be a Buddhist to practise mindfulness. Many experts think that they (f) ought/must to teach mindfulness in all schools. There are certainly lots of good reasons to try it. But you (g) had/would better find a clean floor to practise!